Filter



Dec. 7 1926. 1,609,867

c. P. EISENHAUER FILTER Filed August 5. 1925 Patented De'c. 7, 1926.

UNITED STATES CHARLES P. EISENHAUER, OF DAYTON, OHIO,.ASSIGNOR TO THEl DURO COMPANY, OF i 1,609,867 PATENT oFElcE.

DAYTON, OHIO, A CORPORATION OF OHIO.

FILTER.

Application led August 3, 1923. n Serial No. 655,433.

My invention relates to a water distribution system and more particularly to a pneumatic pressure soft Water system for residences and the like wherein rain water will be filtered and clarified under pressure for delivery through distribution lines and at the faucets.

ln numerous localities wherein the natural water is impregnated with lime. or other minerals and known as hard waterit is the custom to collect rain water drained from the roofsv into underground cisterns. This rain vwater is used `for washing, bathing, and general cleansing purposes in preference to the natural or hard Water in Which soap will not lather because of its hardness'or mineral contents. The drainage of such water from a roof carries with it more or less dust and dirt andv particularly soot Which may have been deposited upon the roof from adjacent chimneys. Although ordinarily such rain water is passed through a settling chamber and is filtered into the supply cistern much of the impurities are carried with the water in a state of suspension and the water becomes discolored. y

Inthe present system of soft Water supply there is provided intermediate the pressure tank and the discharge faucets a lter and clarifier' through which the soft Water supply is forced under pressure for the purpose of separating and removing any remaining impurities and for the purpose of clarifying the Water by removing discoloration due tothe particles of soot or other discoloring material which may be held in suspension. v

The object of the invention is to simplify the structure as Well as the means and mode of operation of such pneumatic pressure water supply systems whereby they Will not only be cheapened in construction, but will` bodiment of the invention Fig. 1 is a general View, somewhat diagrammatic, of a soft water pneumatic pressure supply system in which the present invention has been embodied. F ig. 2 is a vertical sectional view of the separator or clarifying chamber through which the water supply is passed under pressure. Fig. 3 is a sectional perspective view of the poriferous filter forming the outlet of the clarifying chamber.

Like parts are indicated by similar characters of lreference throughout, the several views. p

The soft water supply system as illusltrated in Fig. 1 embodies the down spout 1 leading from the roof or rain collecting surface and discharging into a settling chamber 2. From the settling chamber v2 the water is discharged into the cistern or reservoir 3. -These' underground cisterns are ordinarily divided into separate compartmentsl b v an intermediate brick wall 4 which serves as a separator and through which the water percolates from the initial receiving compartment 5 into the supply compartment 6. The Water supply is drawn fromthe'compartment 6 through the suction pipe 7 by any suitable form of pump. In the present instance there has been shown a typical power pump as ordinarily used in cisterns of this character. -The pump 8 delivers the water drawn from the cistern into a pressure tank '9. The pressure tank 9 contains a considerable volume of air in the upper portion or be interposed in the suction line matter, dust and dirt are removed in the settling chamber 2 and by the percolation of the Water through filterwall 4 the Water supply remains diseolored and dark due to the presence of soot and coloring matter in solution.

To remove such discoloration and clarify the water supply preparatory to its dis'- charge through the distribution lines 1() and faucet 11 there is interposed in the system, preferably though not necessarily upon the high pressure side of the storage tank S), a clarifying compartemnt 12. This purifier may however be interposed'in the supply line between the pump 8 and thestorage tank or to meet other conditions of use might the cistern and the pump S.

The Water purifier 12 comprises a receptacle divided medially by a partition or wall 13 into two intercommunicating compartments. These compartments communicate one with another through a space or open* ing 14: adjacent to the bottom of the recepe tacle. r1`he recept-acle is provided with a reemovable lid or cover 15 by which access may be had for inspection and repairs and for recharging with purifying materials. The lid or closure is engaged with the receptacle by a hermetieally sealed joint provided with a suitable gasket or packing means so that in effect the purifier 12 becomes a part of the Water supply system through which the Water may be discharged under pressure or if located upon the opposite side of the pump it may be drawn by suction. The initial compartment 16 of the clarifier isprovided with a Water inlet connection adjacent to the top of the receptacle. This consists of a uni-on connection 17 screvv threaded into the Wall of the receptacle 12 and into which l union connection in turn is threaded a perforated distributor pipe 18 having a plurality of orifices 19 distributed longitudinally upon the pipe. The end of this distributor .pipe is preferably closed and the orifices 19 are screen covered by means of a section of Woven wire screen or perforated sheet metal Wrapt about the distributor pipe and secured thereto by soldering or other- Wise.

Leading from thegsecond compartment 2O of the lpurifier receptacle is an outlet connection comprising a'union 21 for connection with the distribution line. This union 21 is screw threaded into the wall of the receptacle 12 and in turn receives the screw threaded connection 22 of a poriferous filtered chamber 23. This filter box or chamber comprises a housing open on its lateral inturned face and provided with a neck 24 for connection by the nipple 22 with the union or coupling 21. Located at a medial point Within filter or housing 23 is a perforated diaphragm 25 preferably o f screen 7 bctweelr material. The open face of the housing 23 is provided with a face plate 26 having enlarged screen covered openings or windows 27 therein. The plate 26 serves to support the screen 2T. A similar aperture-d supporting plate is also preferably provided for .the cover or screen diaphragm 25. Thespacc intermediate the perforated diaphragms or screens 25 and 27 is packed With poriferous material. In practice sponge has been found quite practical and satisfactory for this purpose although other material of poriferous character may be used in lieu of the sponge.

The compartments 16 and 2O of the puri-- ficrfare filled with porous material or Water purifying chemicals. In practice these comj'iartments are filled with carbo-ash or with charcoal. However in lieu thereof forms of porous clay, sand, minerals or chemicals are acceptable or other materials having the capabality for separating out and withholding the minute particles of foreign mattei' carried by the Water While permitting the water to peroolate or fioivA through such mass lof purifying material under pressure. The Water enters through the distributing' inlet pipe 17 then passes downward through the compartment 16 percolating through the mass of separator material contained in such compartment and passes thence 'through the opening 15 at the bottom of the partition 18 and rises through the mass of separator material Within the second compartment 20. The body 28 of porifcrous material in the outlet filter 23 permits the free passage of the Water therethrough but prevents any particles ofthe charcoal or other purifying and clarifying materials being carried from the receptacle 12 into -the distribution line 10.

In Fig. 1 there is shown a slight modification lwherein the compartments 16 and 20 are not completely filled With charcoal or other purifying or clarifying materials but va considerable space is left in the upper portion of the compartment 16 about the distribution pipe for a body of Water to be purified and clarified and a like space is provided in the upper portion of the second compartment 20 for a supply quantity of treated Water. Also in this instance the body of purifying and clarifying materials Whether charcoal or otherwise in the second compartment 2O is overlaid with a stratum of sand 29 holding down the charcoal which is of light Weight with, tendency to float. In Fig. 2 the treatment material through which the water is percolated is held down or kept from Heating by filling the receptacle to the top and compressing the material therein to greater or less degree by the application of the closure lid 15.

The screen covered distribution pipe 17 and the poriferous outlet filter 23 are readily vus accessible for inspection or cleansing by removal of the cover lid 15 without the necessity of emptying the treatment material from the receptacle.

However by disconnection of the unions or couplings at the opposite side of the clarifier the entire receptacle may beremoved from the` distribution line to facilitateemptying .and recharging the purifier. For this pui-posea cutoff valve 30 is 'provided intermediate the pressure tank 9 and the clarifier 1Q. I

While the invention has been described heretofore more particularly as a clarifier and purifier for a rain or soft Water system to be installed on either the distribution side or the supply side ofthe pressure tank the same device may be applied to hard or natural water systems for the purpose of softening or neutralizing the mineral impregnated hard water. In such case the receptacle 12 would be charged with zelites, soda ash, or chemical impregnated clays or materials which will have'the effect of neutralizing or breaking the natural or hard water passing through the device.

From the above description it will be apparent that there is thus provided a device of the. character described possessing the particular features of advantage before enumerated as desirable, but which obviously is susceptible of modification in its form, proportions, detail construction and arrangef ment of parts Without departing from the principle involved or sacrificing any-of its advantages.

While in order to comply with the statute the invention has been described in language more or less specific as to structural features, it is to be understood that the invention is not limited to the specific details shown, but that the means and construction herein disclosed comprises the preferred form of several modes of putting -the inventioninto effectand the invention, is, therefore, claimed in any of its forms or modifications within the legitimate and valid scope of the appended claims. p

Having thus described my invention, vI claim: l

1. A construction wherein water or the like is pumped from a source of supply and stored under pressure in a reservoir from which it is discharged under pressure though a distribution conduit to outlet vfaucets, characterized by a filter interposed in suchv system intermediate the pressure storage reservoir, and the outletfaucets, through which the water or the like is discharged under pressure comprising a box like conta-iner separated medially intotwo compart- `ments intercommunicating at their bottoms,

bodies of filter material in each of the compartments, a conduit connection between the reservoir and the top of one of the compartments through which the water or the like is admitted under pressure from the storage reservoir, and an outlet housing containing a body of poriferous material buried in the body of filter material adjacent to the top -of the other compartment and connected to the outlet faucets.

a valved conduit leading from the outlet housing in the secondary compartment.

3. In an apparatus of the character described, a filter chamber having inlet and outlet conduits, a body of filter material in the chamber, an enlarged housing communieating with the outlet conduit and projecting within the filterchamber, said housing being embedded in and surrounded by the body of filter material, a detachable face plate upon said housing comprising a mar ginal frame and transverse mullions dividing the face plate into a plurality of enlarged open spaces, a screen diaphragm located interiorly of the face late and in contiguous relation thereto, and) a body of poriferous material confined within said outlet housing f independent of the filter body contained Within the chamber.

.4. The combination with a filter vessel having inlet and outlet orifices, a body of f filter material substantially filling the vessel, of an outlet housing located within the vessel and buried within the body of filter material, said housing including a screw threaded tubular neck for engagement with the outlet orifice, a foraminous side wall for said housing, and a face plate overlying the foraminous side wall comprising a marginal frame and a plurality of transverse bars connected thereto and extending contiguous to the foraminous wall which is divided thereby into a plurality of separate areas, and a body of poriferous material confined Ywithin said housing by said foraminous wall.l

' In testimony whereof, I have hereunto set my hand this 18th -day of July A. D. 1928.

CHARLES. P. EISENI-IAUER. 

